		function fixdata(data) { //文件流转BinaryString
			var o = "",
				l = 0,
				w = 10240;
			for (; l < data.byteLength / w; ++l) o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w, l * w + w)));
			o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w)));
			return o;
		}